Details of Disappearance and work by Brian Ladd:login to view) (login to view)

Clampitt relocated to Kansas to live with her brother's family in January 1987. She previously lived in Wichita Falls, Texas with her son. Clampitt had problems with drugs and alcohol in the early to mid-1980s. Her brother agreed to assist her and Clampitt left her child in her parents' custody in Texas while she located employment. She located an advertisement for Equi II, a management consulting firm in Overland Park, Kansas, shortly after her arrival. Her brother said that the wording in the ad, which promised extensive traveling and a new wardrobe, appeared strange. Clampitt was hired by the company's owner, John Edward Robinson Sr., shortly afterwards. A photo of Robinson is posted at the end of this case summary.
Clampitt often stayed at local hotels for several nights due to her position, but her brother became concerned for her welfare when she never returned home after leaving on June 15, 1987. He told authorities that he visited Robinson at the Equi II offices and Robinson said he was aware of his search. Clampitt has never been heard from again.

Clampitt has never been located and her case remains open. Her name was initially misspelled as "Katherine Clampet" when investigators announced the reopening of her investigation, but has since been corrected.